I'm not a tech, but you could say I know a lot.....you got the bases down DKR, to meet new emission requirements, the DPF is put in place to "catch" the soot "black smoke". Well like any filter it needs to be cleaned after it gets full, its what they call regeneration mode or regen. More fuel is dumped in the motor to bring up the EGT's close to 1200F and it "burns" off the soot inside the DPF, cleaning it.....the truck uses temp sensors and on pressure sensor to monitor regen and when it should or shouldn't go in, but it also has a "back-up" that after so many miles the truck has not seen a regen cycle it start the process.....I learned that the hard way

-Julian

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In some cities your exhaust will be cleaner than the air. So your cleaning the air and doing the city a service.

All my touring photos. (except the two massive trips in 2011-soon to be posted eventually)

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-david

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